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package org.mule.compatibility.transport.http.multipart;


/**
 * Defines configuration object used to control how attachments are processed.
 *
 * This is an adaptation of the javax.servlet.MultipartConfigElement class introduced into the Servlet 3.0 specification. The API
 * has been kept that same but the package and class name has changed not to conflict with the Servlet spec.
 *
 * @since 3.0
 */
public class MultipartConfiguration {

  private String location;
  private long maxFileSize;
  private long maxRequestSize;
  private int fileSizeThreshold;

  /**
   * Constructs an instance with defaults for all but location.
   *
   * @param location defualts to "" if values is null.
   */
  public MultipartConfiguration(String location) {
    if (location == null) {
      this.location = "";
    } else
      this.location = location;
    this.maxFileSize = -1L;
    this.maxRequestSize = -1L;
    this.fileSizeThreshold = 0;
  }

  /**
   * Constructs an instance with all values specified.
   *
   * @param location the directory location where files will be stored
   * @param maxFileSize the maximum size allowed for uploaded files
   * @param maxRequestSize the maximum size allowed for multipart/form-data requests
   * @param fileSizeThreshold the size threshold after which files will be written to disk
   */
  public MultipartConfiguration(String location, long maxFileSize, long maxRequestSize, int fileSizeThreshold) {
    if (location == null) {
      this.location = "";
    } else
      this.location = location;
    this.maxFileSize = maxFileSize;
    this.maxRequestSize = maxRequestSize;
    this.fileSizeThreshold = fileSizeThreshold;
  }

  /**
   * Gets the directory location where files will be stored.
   *
   * @return the directory location where files will be stored
   */
  public String getLocation() {
    return this.location;
  }

  /**
   * Gets the maximum size allowed for uploaded files.
   *
   * @return the maximum size allowed for uploaded files
   */
  public long getMaxFileSize() {
    return this.maxFileSize;
  }

  /**
   * Gets the maximum size allowed for multipart/form-data requests.
   *
   * @return the maximum size allowed for multipart/form-data requests
   */
  public long getMaxRequestSize() {
    return this.maxRequestSize;
  }

  /**
   * Gets the size threshold after which files will be written to disk.
   *
   * @return the size threshold after which files will be written to disk
   */
  public int getFileSizeThreshold() {
    return this.fileSizeThreshold;
  }
}
